Question

if base of an isosceles triangle is 12cm and its perimeter is 35 cm find the area of the triangle.​

Answer 1

A=bhb

2

P=2a+b

hb=a2﹣b2

4

Solving forA

A=1

4bP(P﹣2b)=1

4·12·35·(35﹣2·12)≈58.86425cm²